Add 15/7 and 21/64, Solve 2 1/7 + 21/64 as a fraction

Add 15/7 and 21/64

1^st number: 2 1/7, 2^nd number: 21/64

15/7 + 21/64 is 1107/448.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448

Next, find the equivalent fraction of both fractional numbers with denominator 448
For the 1st fraction, since 7 × 64 = 448,
15/7 = 15 × 64/7 × 64 = 960/448
Likewise, for the 2nd fraction, since 64 × 7 = 448,
21/64 = 21 × 7/64 × 7 = 147/448
Add the two like fractions:
960/448 + 147/448 = 960 + 147/448 = 1107/448
So, 15/7 + 21/64 = 1107/448
In mixed form: 2211/448

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